Tractor-wheel.



H. KROGMOE.

TRACTOR WHEEL.

APPLICATION FILED MAY 10,1913.

Patented Feb. 16, 1915.

n: 5' En gma a rrnn sira rns rarnnr orricn HANS. KROQMOE, 0F TURTLE LAKE, NORTH DAKOTA.

TRACTOR-WHEEL;

Specification of Letters Iatent.

Patented Feb. 1'6, 1915.

Application filed May 10, 1913. Serial No. 766,779.

purchase of the wheel against the ground.

regardless of the condition of the ground and for preventing the wheel from sinking too low in the soil and for preventing skidding movements of the-wheel. I

WVith the above and other objects in view, the invention consists of certain novel features of construction, combination and. ar-

rangement of parts, as'will be hereinafter described and claimed.

In the accompanying drawings --Figure 1 is a perspective view of the wheel; Fig. 2 is a, vertical section therethrough; and Fig. 3 is a section on line of Fig. 2.

The wheel comprises side, disks 1 and 2 substantially" of identical form and preferztlolyconstructed of metal and'provided with inner portions 3 and radial spokes 4:. The portion 3 of one of the disks is alined with the similar portion of the otherdisk and connected therewith through ahub 5 of any-suitable well known'construction. The

disks are provided with outer annular rela tively broad shoulders 6, the shoulder of one of the disks being :rlined with the shoulder of the other disk so that both shoulders operate in conjunction to increase the horizontal proportions of the bearing surface of the wheel to prevent the latter from sinking in the soil for too greata depth. From the shoulders 6, the disks are provided with continuous flanges 7 which are designed to hold the wheel against lateral skidding.

The tractor blades 8 of metal are interposed between the disks 1 and 2 and provided with attaching ends, which are secured in any suitable well known manner to the inner .sur aces of the disks. These blades are of identical thickness throughout, being constructed preferably of thin metal whereby their outer horizontal edges 9 are substantially in line with the adjacent annular edges 10 ofthe flanges 7. The blades are equidistantly mounted around the wheel and are disposed radially of the hub and parallel therewith so that they will be made to ef- 'fectually enter the soil and obtain such'purchase as will insure an operative revolving action of the wheel that may be necessary to propel the object. Thewheel is provided at one side with a driving sprocket 11, which may be constructed in uy known manner.

From the'foregoing d'esfiription, taken in connection with the accompanying drawings, the construction and operation of the invention will be readily understood Without requiring a more extended explanation.

suitable well 4 .Vanous changes in the form, proportion and the minor details of construction may be resorted to'without departing from the principle or sacrificing any of the advantages of this invention as claimed.

Having thus described my invention, what I claim is r The herein described tractor Wheel comprising a pair of spaced disks having horizontally arranged and extending annular shoulders on their inner sides near their peripheries and also having vertical tread flanges at the opposing sides of said shoulders, a tubular hubmember connecting the centers ofsaid disks and radially arranged andspaced blades at the periphery of the 'wheel, between and having oppositely extending ends secured to the inner sides of said tread flanges of the disks.

In testimony whereof I affix my signature in presence of two witnesses.

HANS KROGMOE.

Y Witnesses:

' H. O. F ORGERSON, 

